Patents by Inventor Nathan RETZLAFF

Nathan RETZLAFF has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12295556
    Abstract: Tools used to acquire a core tissue sample are disclosed. A portion of the tools may be configured to rotate when acquiring the core tissue sample. The tools include a partoff tab to sever the core tissue sample from a lesion and to retain the core tissue sample when the tool is removed from the patient. The tools may further include a light source to illuminate a working field.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: May 13, 2025
    Assignee: Merit Medical Systems, Inc.
    Inventors: Robert Bilgor Peliks, Nathan Retzlaff
  • Publication number: 20210093305
    Abstract: Tools used to acquire a core tissue sample are disclosed. A portion of the tools may be configured to rotate when acquiring the core tissue sample. The tools include a partoff tab to sever the core tissue sample from a lesion and to retain the core tissue sample when the tool is removed from the patient. The tools may further include a light source to illuminate a working field.
    Type: Application
    Filed: September 25, 2020
    Publication date: April 1, 2021
    Inventors: Robert Bilgor Peliks, Nathan Retzlaff
  • Patent number: 10849601
    Abstract: A device and method for dampening a biopsy device externally or internally. One variation of the external dampening device includes a flexible sleeve provided to cover external surfaces of the biopsy device. The dampening device may also include a device to cover the entire device externally, wherein only a needle portion is exposed. Further in another aspect, a spring constant or spring property of the springs used in the biopsy device may be altered to decrease the noise emitted from the biopsy device. A device and method is also disclosed for dampening a biopsy device internally using an elastic damper at the end portions of any springs that may be used in the biopsy device or at the end of a stroke of certain movable portions inside the biopsy device.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: December 1, 2020
    Assignee: Merit Medical Systems, Inc.
    Inventors: John Krueger, Michael Plishka, Nathan Retzlaff
  • Publication number: 20180055493
    Abstract: A device and method for dampening a biopsy device externally or internally. One variation of the external dampening device includes a flexible sleeve provided to cover external surfaces of the biopsy device. The dampening device may also include a device to cover the entire device externally, wherein only a needle portion is exposed. Further in another aspect, a spring constant or spring property of the springs used in the biopsy device may be altered to decrease the noise emitted from the biopsy device. A device and method is also disclosed for dampening a biopsy device internally using an elastic damper at the end portions of any springs that may be used in the biopsy device or at the end of a stroke of certain movable portions inside the biopsy device.
    Type: Application
    Filed: August 23, 2016
    Publication date: March 1, 2018
    Applicant: CAREFUSION 2200, INC.
    Inventors: JOHN KRUEGER, MICHAEL PLISHKA, NATHAN RETZLAFF
  • Publication number: 20160346485
    Abstract: A gas elimination apparatus and a method for use in an intravenous delivery system are provided. The apparatus includes a fluid inlet coupling a fluid flow into a liquid chamber, a fluid outlet protruding into the liquid chamber, and a flow diversion member proximal to the fluid outlet. The flow diversion member configured to block a direct flow between the fluid inlet and the fluid outlet. The apparatus includes a hydrophobic membrane separating a portion of the liquid chamber from an outer chamber and a gas venting valve fluidically coupling the outer chamber with the atmosphere.
    Type: Application
    Filed: May 27, 2015
    Publication date: December 1, 2016
    Inventors: Jason Anthony MOHR, Christopher VARGA, Nathan RETZLAFF